Akmenynė is a village in Šakiai District Municipality, in Marijampolė County, Lithuania. Akmenynė lies at 61 m above sea level. It has 13 inhabitants. The nearest city is Kaunas, 37 km to the east. Among the landmarks around are Ninth Fort (35 km), M. K. Čiurlionis National Art Museum (39 km) and Church of the Discovery of the Holy Cross, Ilguva (11.8 km).